Questions on Mortgage Amortization

How Do Amortized Mortgages Work?
How Does a Savvy Borrower Arrange Payments to Take Maximum Advantage of the Conventional Payment Rules?
What Is the Single Greatest Danger to Borrowers in These Rules?

What Is Negative Amortization? What Benefits Does It Provide to Borrowers? What Are Its Dangers to Borrowers? What Kinds of Mortgages Have a Negative Amortization Feature?

How Does a Simple Interest Loan Differ From a Standard Amortized Mortgage? What Kind of Borrower Does Worse With a Simple Interest Loan? What Kind Does Better?

How Is the Savings Discipline Provided by the Fully Amortizing Mortgage Being Eroded?

Is Unused Home Equity a Missed Opportunity?

What Is "Dead" Home Equity?

Are There Any Circumstances Under Which a Borrower Can Choose How the Mortgage Payment is Allocated Between Principal and Interest?

What Is Negative Homeowner Equity? What Problems Does it Pose for the Homeowner? How Does it Arise?

What Are the Pros and Cons of Borrowing on Your Mortgage to Invest in Common Stock?

How Does the Payment Rate Differ From the Interest Rate?

MY QUESTION IS NOT HERE.  I WOULD LIKE TO LEAVE IT FOR THE PROFESSOR